Methods and systems for secure wireless communication within a p

Details Methods and systems for secure wireless communication within a p Methods and systems for secure wireless communication within a p

1995-04-26

1997-03-04

Safourek, Benedict V.

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370468, 455 331, 455 381, 359136, H04J 1300

Patent

active

056087233

ABSTRACT:
A message signal which is to be securely communicated is encoded, using a preselected code, to generate an encoded signal. A radio frequency signal representative of the encoded signal is transmitted, wherein the radio frequency signal may propagate beyond the predetermined boundary. A code signal representative of the preselected code is also transmitted, wherein propagation of the code signal is confined within the predetermined boundary. At a corresponding receiver within the predetermined boundary, the code signal and the radio frequency signal are received. The encoded signal represented by the radio frequency signal is decoded based upon the preselected code in order to recover the message signal.

REFERENCES:
patent: 4484027 (1984-11-01), Lee et al.
patent: 5208859 (1993-05-01), Bartucci et al.
patent: 5371794 (1994-12-01), Diffie et al.
patent: 5398285 (1995-03-01), Borgelt et al.
patent: 5471532 (1995-11-01), Gardeck et al.

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